for (_i = 0, _len = _ref.length; _i < _len; _i++) {
          polyline = _ref[_i];
          polyline_points = polyline.serviceObject.latLngs.getArray()[0].getArray();
          for (_j = 0, _len2 = polyline_points.length; _j < _len2; _j++) {
            point = polyline_points[_j];